Seniorcitizens的甄选

问题详情： 阅读理解;阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。Seniorcitizensarepermittedtotravelcheaplyonabusiftheyhaveaspecialcard.Womenmaygetcardswhentheyaresixty.Mrs.Matthewslivesint...